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Insaneboltrounder/sjohns
Well-known member
Anyone else cutting the e valves so they are full open earlier like turboal ? According to his test it made a world of difference in what the sled will do on the trail and midrange
09 clutching ,what we got
- Thread starter turboal
- Start date
BJ, yes I hear you about the overrev. I got that complaint about the stock '08 setup. We went with a ramp to drop the low-mid shift RPM/load the engine and that also seems to work great with the helix we chose. Our setup is geared towards the hills,we do very little on road riding and we make buyers aware of this before they buy....but still runs less RPM at 30-40mph than a stocker.
Maybe the shockwave will allow the best of both worlds??? But still having to stop and open the side panel to play with the helix isn't ideal.
Maybe I'll work on a movable ramp and call it the OT special.
More fun!!
And no one thinks the TRA is the problem? Seems like everyone has tossed a lot of effort in the new secondary already, with limited results, or had to compromise some other aspect, like trail speed. The problem hasn't changed, just because BRP gave you guys a versatile secondary, doesn't mean you will be able to use it to make the TRA work. The power source is still the problem and hasn't changed, the garbage in - garbage out rule can't be hidden by trying to doctor up the secondary guys.
PolCat - Give it up. We know you don't like the TRA, that's your opionion. It can be made work and is working for many who know how to actually tune one. Your post about how much you hate it are getting old. We know you don't like it via you other 98 posts stating the same thing. Go back to your own world and work on your clutch that 90% of the snowmobile industry has never heard off and brag to yourself about it.
I have new ramps in my XP that I will be testing hopefully next weekend..
I have new ramps in my XP that I will be testing hopefully next weekend..
Ya, I know I don't know how to tune a TRA, and I gave up too early. Blah blah. But never mind that, look around. Look at the number of guys on here that can tune, or are still trying to tune. Moving down stream to the secondary hasn't addressed the delivery problems you are having when you have to run the power through the TRA.
Take your annoyance out on me if you like but that doesn't change the trouble you guys are having getting the power to the track. It starts at the TRA and you are now finding out that no matter how good the secondary is, the horse power is still being burned up in the TRA. Sorry for the bad news, but there is nothing the matter with the secondary.
It's like buying the latest and great computer and then using dial-up. It's time for BRP to upgrade.
R
Ricardo
Member
YDPC: I'll give you credit for this much, you are persistant if nothing else. You could replace the Energizer bunny on their commercials. Unfortunately, most of us are stuck with whatever comes on the sled for clutches and we try our best to make them work to their full potential. Tossing it in the garbage and putting something else on is not an option for me. Please let all of us that are to dumb to scrap the TRA have a place to discuss our options. If I want a different primary on my sled, I'll buy a Cat (I can't beleive I just said that) 
yamadoopolarcat; yep the tra is terrible. i'm pretty sure most of the threads are to help figure out the tra because it is what most of us use and try to tune.
everyone knows that you LOVE your polar clutch. why wouldn't you love it though, it is the best clutch ever invented.
all those doo guys in the rmsha are pretty stupid to use the tra as well.
everyone knows that you LOVE your polar clutch. why wouldn't you love it though, it is the best clutch ever invented.
all those doo guys in the rmsha are pretty stupid to use the tra as well.
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Go over to the Cat, Poo, and Yamaha forum too and everyone is talking about setups....It's weird you use the best clutch known to man, but nobody runs one.......WEIRD.
I was told by a dealer yesterday that they HAVE to run the TRA! They can tune it only! I think the reason 90% don't run the Polar is ding ding ding....$$$!! I find it amusing how tempermental this clutch is. What may work here, doesn't work there. Why BRP didn't at least stick with the TRA3 I'll never know. It wasn't the greatest clutch, but hands down blows the 7 away. At least they'd go more than 400 miles without needin an overhaul!!
I know what is like to keep the cost of running a sled to a minimum. I ran my 617 for TWELVE years. But just as obviously lots of guys on here are throwing their money away and have lots of money as well.
By the way I never bought the Polar, it was Christmas present. I was so miserable trying to run that TRA that Santa took pity on me. The Polar has cost me absolutely nothing to run, and I am on my third season. It doesn't bust belts and is a blast to run. The Polar Motorsports needed someone to help develop and test (torture) the Polar in the toughest place possible, low elevation mountains (horsepower) and the 800R (shaker) are it.
I have my fingers crossed that the bugs are worked out now, but in the meanwhile it is totally fun blowing the doors of everything else.
The 800R is a better motor than the Poo & Cats, and when I run against the other 800R REV's the Polar is the difference. I've never had so much fun.
Have you had a Polar that made it a full season of riding without exploding yet??? ....doesn't go through belts because the belt lasts longer than the clutch?? Sounds like a great deal to me
Lots of threads about tuning a TRA becasue there are alot more variables with TRA than other style clutches, I generally rotate 2 belts through a season unless I try a setup that is way off-base....tuner error.
I would like to try Polar, but the price and durability issues will keep it from being popular.
Lots of threads about tuning a TRA becasue there are alot more variables with TRA than other style clutches, I generally rotate 2 belts through a season unless I try a setup that is way off-base....tuner error.
I would like to try Polar, but the price and durability issues will keep it from being popular.
POLCAT- Just what kind of track speed numbers are you seeing out of your Polar clutched 800r? Just outta curiousity.
To everyone else, ive got an issue that Im not sure about. 800 XP 163, quite a bit of work done to it. It doesnt seem to want to turn much RPM...in the 79-8 range. It trned 8350 awhile ago and rocked. Ive retraced my mods to make sure that is not the problem. What wears out in the TRA to make it not want to rev??
Any info is much appreciated
To everyone else, ive got an issue that Im not sure about. 800 XP 163, quite a bit of work done to it. It doesnt seem to want to turn much RPM...in the 79-8 range. It trned 8350 awhile ago and rocked. Ive retraced my mods to make sure that is not the problem. What wears out in the TRA to make it not want to rev??
Any info is much appreciated
Pull it apart and check all bushings and rollers, the spring cap bushing is junk on the '07-'08, the '09 is supposedly improved and much tighter, been putting them on the '08's we have had apart.
We have a complete setup for the '08's that has worked well for us...depending on what mods you have done it may be an option for you.
I keep the RPM around 7,000 to 7,300 on the trail and the little wee numbers in the guage say about 51 MPH.
I run 23/45 gears and the engine never moves off 8,250 RPM on any climb. Maybe someone can do the calculations on track speed in the low ratio. We haven't had enough snow yet to slow the sled down enough to get a reading on that wee speedo window. I remember last year when we had lots of snow and there was lots of time to read the dial that it was about 42 MPH.
So POLCAT, exactly how is a Polar ANY improvement over a TRA if you have NO gain if not a loss in track speed?? 42 mph doesnt make a good running 600 where I come from man. JMO
Ya, I don't know why it is so good. That's the set up I run anyway. The sled runs with the 1000 Cats and a little less than a very well tuned 05 1000 REV. I haven't seen a REV 800 yet that will highmark above this set up when I'm using the Polar clutch. I know it has to be that Polar clutch though, because when ever I had to run the TRA the sled only ran in the middle of the pack, or worse. Probably because the TRA doesn't like the high gears at all.
We don't see many 600's around here so I don't know if it would be better than the local sleds or not. Most people have 700 and up, and lots of Turbo Yamahas.
Here's a picture of a TRA equipped sled trying to follow the track made using a Polar clutch. Pretty much tells you all you need to know about track speed.
BJ, yes I hear you about the overrev. I got that complaint about the stock '08 setup. We went with a ramp to drop the low-mid shift RPM/load the engine and that also seems to work great with the helix we chose. Our setup is geared towards the hills,we do very little on road riding and we make buyers aware of this before they buy....but still runs less RPM at 30-40mph than a stocker.
Maybe the shockwave will allow the best of both worlds??? But still having to stop and open the side panel to play with the helix isn't ideal.
Maybe I'll work on a movable ramp and call it the OT special.
More fun!!
Thats rich.....LOL
The SW only needs minor adjustments as needed...heres my scenario...
10-15 miles of trails to get to play spot...turn SW OUT 1/2 a turn in parking lot..run/race the 10-15 miles in... hit play spot @ pull over to count heads etc..open side panel roll SW back IN 1/2 turn for powder...alot easier than clickers IMHO...if you dump OFF at play area!!! than no tweaking except for 3' of fresh or 2 week old snow...or "as needed" for personal preferance...no biggy IMHO-BJ
BTW- the 441 is litterly the same as a 414 (MXZ flatlander ramp but with a lower tip) I'm using this ramp in my 1200T...LOL
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